gb.menu
From Gamebuino Wiki
Description
Displays a menu to select from a list of items.
Syntax
gb.menu(menu, MENULENGTH);
Parameters
- menu (char** PROGMEM): the items to select from, stored as a PROGMEM array of strings (see example below).
- MENULENGTH (byte): the number of items in the menu.
Returns
The number of the item selected, or -1 if menu is left without selecting an item (char).
Example
#include <SPI.h> #include <Gamebuino.h> Gamebuino gb; #define MENULENGTH 6 char* PROGMEM menu[MENULENGTH] = { "System info", "Change game" }; void setup(){ gb.begin(F("Menu example")); } void loop(){ switch(gb.menu(menu, MENULENGTH)){ case 0: displaySystemInfo(); break; case 1: gb.changeGame(); break; default: break; } } void displaySystemInfo(){ while(1){ if(gb.update()){ if (gb.buttons.pressed(BTN_C)) { gb.sound.playCancel(); return; } gb.display.setCursor(0, 0); gb.display.print(F("Bat:")); gb.display.print(gb.battery.voltage); gb.display.println(F("mV")); gb.display.print(F("Bat lvl:")); gb.display.print(gb.battery.level); gb.display.println(F("/4")); gb.display.print(F("Light:")); gb.display.println(gb.backlight.ambientLight); gb.display.print(F("Backlight:")); gb.display.println(gb.backlight.backlightValue); gb.display.print(F("Volume:")); gb.display.print(gb.sound.getVolume()); gb.display.print(F("/")); gb.display.println(gb.sound.volumeMax); } } }